mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-22 00:00:59 +02:00
ce1adf9955
high-performance search query situations as seen in yacy-metager integration showed deadlock situation caused by synchronization effects inside of sun.java code. It appears that the logger is not completely safe against deadlock situations in concurrent calls of the logger. One possible solution would be a outside-synchronization with 'synchronized' statements, but that would further apply blocking on all high-efficient methods that call the logger. It is much better to do a non-blocking hand-over of logging lines and work off log entries with a concurrent log writer. This also disconnects IO operations from logging, which can also cause IO operation when a log is written to a file. This commit not only moves the logger from kelondro to yacy.logging, it also inserts the concurrency methods to realize non-blocking logging. git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@6078 6c8d7289-2bf4-0310-a012-ef5d649a1542
239 lines
9.3 KiB
Java
239 lines
9.3 KiB
Java
// message.java
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// -----------------------
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// part of the AnomicHTTPD caching proxy
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// You must compile this file with
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// javac -classpath .:../../classes message.java
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// if the shell's current path is HTROOT/yacy
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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.UnsupportedEncodingException;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import de.anomic.data.messageBoard;
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import de.anomic.http.httpRequestHeader;
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import de.anomic.kelondro.util.FileUtils;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.tools.crypt;
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import de.anomic.yacy.yacyCore;
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import de.anomic.yacy.yacyNetwork;
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import de.anomic.yacy.yacySeed;
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import de.anomic.yacy.logging.Log;
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public final class message {
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private static SimpleDateFormat SimpleFormatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
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public static String dateString(final Date date) {
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return SimpleFormatter.format(date);
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}
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public static serverObjects respond(final httpRequestHeader header, final serverObjects post, final serverSwitch<?> env) {
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if (post == null || env == null) { return null; }
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// return variable that accumulates replacements
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final plasmaSwitchboard sb = (plasmaSwitchboard) env;
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final serverObjects prop = new serverObjects();
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if ((post == null) || (env == null)) return prop;
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if (!yacyNetwork.authentifyRequest(post, env)) return prop;
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final String process = post.get("process", "permission");
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final String key = post.get("key", "");
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final int messagesize = 10240;
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final int attachmentsize = 0;
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prop.put("messagesize", "0");
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prop.put("attachmentsize", "0");
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final String youare = post.get("youare", ""); // seed hash of the target peer, needed for network stability
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// check if we are the right target and requester has correct information about this peer
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if ((sb.peers.mySeed() == null) || (!(sb.peers.mySeed().hash.equals(youare)))) {
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// this request has a wrong target
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prop.put("response", "-1"); // request rejected
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return prop;
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}
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if ((sb.isRobinsonMode()) &&
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(!((sb.isPublicRobinson()) ||
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(sb.isInMyCluster(header.get(httpRequestHeader.CONNECTION_PROP_CLIENTIP)))))) {
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// if we are a robinson cluster, answer only if this client is known by our network definition
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prop.put("response", "-1"); // request rejected
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return prop;
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}
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prop.put("messagesize", Integer.toString(messagesize));
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prop.put("attachmentsize", Integer.toString(attachmentsize));
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if (process.equals("permission")) {
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// permission: respond with acceptable message and attachment size
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// String iam = (String) post.get("iam", ""); // seed hash of requester
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prop.put("response", "Welcome to my peer!");
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// that's it!
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}
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if (process.equals("post")) {
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// post: post message to message board
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final String otherSeedString = post.get("myseed", "");
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if (otherSeedString.length() == 0) {
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prop.put("response", "-1"); // request rejected
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return prop;
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}
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//Date remoteTime = yacyCore.parseUniversalDate((String) post.get(yacySeed.MYTIME)); // read remote time
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final yacySeed otherSeed = yacySeed.genRemoteSeed(otherSeedString, key, false);
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String subject = crypt.simpleDecode(post.get("subject", ""), key); // message's subject
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String message = crypt.simpleDecode(post.get("message", ""), key); // message body
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if (subject == null || message == null) {
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prop.put("response", "-1"); // don't accept empty messages
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return prop;
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}
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message = message.trim();
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subject = subject.trim();
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if (subject.length() == 0 || message.length() == 0) {
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prop.put("response", "-1"); // don't accept empty messages
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return prop;
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}
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prop.put("response", "Thank you!");
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// save message
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messageBoard.entry msgEntry = null;
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byte[] mb;
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try {
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mb = message.getBytes("UTF-8");
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} catch (final UnsupportedEncodingException e) {
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mb = message.getBytes();
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}
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sb.messageDB.write(msgEntry = sb.messageDB.newEntry(
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"remote",
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otherSeed.get(yacySeed.NAME, "anonymous"), otherSeed.hash,
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sb.peers.mySeed().getName(), sb.peers.mySeed().hash,
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subject, mb));
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messageForwardingViaEmail(sb, msgEntry);
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// finally write notification
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final File notifierSource = new File(sb.getRootPath(), sb.getConfig("htRootPath","htroot") + "/env/grafics/message.gif");
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final File notifierDest = new File(sb.getConfigPath("htDocsPath", "DATA/HTDOCS"), "notifier.gif");
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try {
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FileUtils.copy(notifierSource, notifierDest);
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} catch (final IOException e) {
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Log.logSevere("MESSAGE", "NEW MESSAGE ARRIVED! (error: " + e.getMessage() + ")");
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}
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}
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// System.out.println("respond = " + prop.toString());
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// return rewrite properties
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return prop;
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}
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/*
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* To: #[to]#
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From: #[from]#
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Subject: #[subject]#
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Date: #[date]#
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#[message]#
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*/
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private static void messageForwardingViaEmail(final plasmaSwitchboard sb, final messageBoard.entry msgEntry) {
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try {
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if (!Boolean.valueOf(sb.getConfig("msgForwardingEnabled","false")).booleanValue()) return;
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// getting the recipient address
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final String sendMailTo = sb.getConfig("msgForwardingTo","root@localhost").trim();
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// getting the sendmail configuration
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final String sendMailStr = sb.getConfig("msgForwardingCmd","/usr/bin/sendmail")+" "+sendMailTo;
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final String[] sendMail = sendMailStr.trim().split(" ");
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// building the message text
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final StringBuilder emailTxt = new StringBuilder();
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emailTxt.append("To: ")
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.append(sendMailTo)
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.append("\nFrom: ")
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.append("yacy@")
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.append(sb.peers.mySeed().getName())
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.append("\nSubject: [YaCy] ")
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.append(msgEntry.subject().replace('\n', ' '))
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.append("\nDate: ")
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.append(msgEntry.date())
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.append("\n")
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.append("\nMessage from: ")
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.append(msgEntry.author())
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.append("/")
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.append(msgEntry.authorHash())
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.append("\nMessage to: ")
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.append(msgEntry.recipient())
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.append("/")
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.append(msgEntry.recipientHash())
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.append("\nCategory: ")
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.append(msgEntry.category())
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.append("\n===================================================================\n")
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.append(new String(msgEntry.message()));
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final Process process=Runtime.getRuntime().exec(sendMail);
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final PrintWriter email = new PrintWriter(process.getOutputStream());
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email.print(new String(emailTxt));
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email.close();
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} catch (final Exception e) {
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yacyCore.log.logWarning("message: message forwarding via email failed. ",e);
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}
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}
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/*
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on 83
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DEBUG: message post values = {youare=Ty2F86ekSWM5, key=pPQSZaXD, iam=WSjicAx1hRio, process=permission}
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von 93 wurde gesendet:
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DEBUG: PUT BODY=------------1090394265522
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Content-Disposition: form-data; name="youare"
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Ty2F86ekSWM5
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------------1090394265522
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Content-Disposition: form-data; name="key"
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pPQSZaXD
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------------1090394265522
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Content-Disposition: form-data; name="iam"
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WSjicAx1hRio
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------------1090394265522
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Content-Disposition: form-data; name="process"
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permission
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------------1090394265522
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on 93
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DEBUG: message post values = {youare=WSjicAx1hRio, key=YJZLwaNS, iam=Ty2F86ekSWM5, process=permission}
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*/
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}
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